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🔍 Decode your GM’s secrets before your mechanic does!
The Innova 3123 GM OBD1 Code Reader is a corded diagnostic tool designed specifically for General Motors vehicles from 1982 to 1995. It safely reads engine control module (ECM) and anti-lock braking system (ABS) codes via the vehicle’s self-test connector, providing clear fault codes without risking damage to the vehicle’s computer. The device includes multilingual instructions and supports quick, reliable diagnostics for gasoline-powered GM cars and trucks, excluding diesel, Cadillac, Geo, Nova, and Sprint models.









| ASIN | B000EVU8C0 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #32,792 in Automotive ( See Top 100 in Automotive ) #137 in Automotive OBD-II Engine System Diagnostic Tools |
| Brand Name | Innova |
| Country of Publication | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (6,667) |
| Global Trade Identification Number | 00042173031238 |
| Included Components | Code Reader^ Insert Card |
| Item Type Name | Innova 3123 GM OBD1 Code Reader |
| Item Weight | 290 g |
| Manufacturer | Innova |
| Manufacturer Part Number | 3123 |
| Model Number | 3123 |
| Operating System | Windows XP |
| Part Interchange Info | 3123 |
| Power Source | Corded Electric |
| UPC | 042173031238 |
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